CN101965582B - Integrated circuit card - Google Patents
Integrated circuit card Download PDFInfo
- Publication number
- CN101965582B CN101965582B CN2009801082947A CN200980108294A CN101965582B CN 101965582 B CN101965582 B CN 101965582B CN 2009801082947 A CN2009801082947 A CN 2009801082947A CN 200980108294 A CN200980108294 A CN 200980108294A CN 101965582 B CN101965582 B CN 101965582B
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- China
- Prior art keywords
- integrated circuit
- circuit card
- piece
- processing unit
- central processing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Credit Cards Or The Like (AREA)
Abstract
The invention relates to an integrated circuit card comprising: an input/output block for receiving external command data from an interface device,a central processing unit(CPU) in signal communication with the input/output block for performing a task corresponding to the received command data,a judgement block in signal communication with the central processing unit for judging whether a working time of the central processing unit reaches a reference time, after an input of the external command data is completed,and a control block in signal communication with the judgement block for operating responsive to an output of the judgement block, wherein the control block controls such that a S(WTX request) is output via the input/output block without intervention by the central processing unit whenever the interface device connected to the integrated circuit card transmits a command to the integrated circuit card and the integrated circuit card is not able to respond to this command within the defined maximum waiting time.
Description
Technical field
The present invention relates to integrated circuit card according to the feature of claim 1.
Background technology
Integrated circuit (IC) card is known, and they are often used in identification, for example so that allow limited accass to facility, perhaps is used to allow the user of such integrated circuit card to carry out some financial transaction.
Integrated circuit card is to comprise the card that receives and send the integrated circuit of data according to the interface by iso standard 7816 definition.Therefore, the electronic signal of integrated circuit, data structure and host-host protocol all define in ISO 7816-3.ISO 7816 is international standards, and it has defined the characteristic feature of such integrated circuit.For example, the physical characteristics of the integrated circuit card that ISO 7816-1 definition is such, and ISO 7816-3 has defined electronic signal and host-host protocol.
Utilization is by the asynchronous half-duplex character transmission agreement of ISO 7816-3 definition, hereinafter be referred to as " T=1 host-host protocol ", in the time of in interfacing equipment sends a command to the maximum latency that integrated circuit card and integrated circuit be stuck in definition, can not responding this order, integrated circuit card must send the WTX request to interfacing equipment, hereinafter be referred to as stand-by period prolongation request, promptly ask the S piece (S-block) of stand-by period prolongation.
Usually, the piece frame that is sent by card can comprise I piece, R piece that is referred to as the ready for receiving piece that is referred to as message block and the S piece that is referred to as management (supervisory) piece.According to the value of some bit regions in these pieces, they can be encoded as different orders or message.
Especially, the time that the order that receives when processing needs has exceeded maximum character/piece during the stand-by period, in order to obtain the extra work time, S block command S (WTX request) is sent to interfacing equipment from integrated circuit card.
When from integrated circuit card transmission S (WTX request) piece, interfacing equipment is reset and is measured the timer of character stand-by period or piece stand-by period, thereby the stand-by period is reset.
Under the situation of aforementioned T=1 host-host protocol, integrated circuit card must send S (WTX request) to interfacing equipment before the time of handling the input command cost surpasses maximum latency.The CPU (central processing unit) that this means traditional integrated circuit card must stop to carry out the current order of carrying out to handle the process that sends S (WTX request) piece.As everyone knows, integrated circuit card is according to the application program processing command.Because this reason, the process that sends S (WTX request) piece influences whole programs.In addition, can not stop to carry out under the situation of current input command, interface card does not receive the response from integrated circuit card in the work stand-by period, and current communications status is treated to garble.Therefore, the proper communication between interfacing equipment and the integrated circuit card is not finished.This has caused defective and mistake in the communicating by letter of integrated circuit card and interfacing equipment.
Summary of the invention
Therefore, target of the present invention is to create a kind of integrated circuit card that can weaken the above-mentioned problem of mentioning.
The above-mentioned problem of mentioning can solve by following integrated circuit card, and described integrated circuit card comprises: the I/O piece receives the external command data from interfacing equipment; CPU (central processing unit) (CPU) is carried out signal communication with the I/O piece, to carry out and the corresponding task of order data that receives; Decision block carries out signal communication with CPU (central processing unit), and after judging that externally the input of order data is finished, whether the working time of CPU (central processing unit) reaches the reference time; And controll block, carry out signal communication with decision block, operate with output in response to decision block, the interfacing equipment that wherein no matter when is connected to integrated circuit card sends a command to integrated circuit card, and integrated circuit card can not respond this order in the maximum latency of definition, controll block is controlled, thereby need not export S (WTX request) by the I/O piece under the situation of CPU (central processing unit) intervention.
Further, valuably, integrated circuit is stuck in work under the T=1 host-host protocol.
According to the present invention, S (WTX request) is the management piece of stand-by period request.
In addition, valuably, be " 000011 " with the coding of the S (WTX request) of 6 bit modes.
Further, more valuably, when the end of transmission (EOT) of process data, it is receiving mode that decision block is provided with the I/O piece.
In addition, valuably, when the end of transmission (EOT) of process data, decision block is provided with controll block for confirming receiving mode.
According to another embodiment of the invention, the integrated circuit card inspection is to respond S (WTX response) piece that previous S (WTX request) piece that is sent by integrated circuit card sends by interfacing equipment.
Further advantage of the present invention is described with reference to dependent claims.
Description of drawings
In conjunction with the accompanying drawings from the description of exemplary embodiments of the present invention, above-mentioned and other characteristics of the present invention and advantage will be conspicuous.Wherein:
Fig. 1 illustrates the explanatory view of integrated circuit card.
Embodiment
Fig. 1 illustrates the explanatory view of integrated circuit card 1, and described integrated circuit card 1 is communicated by letter with interfacing equipment 2.Circuit card comprises CPU (central processing unit) 3, is used to handle input data, goes to the output data of interface from interface, or according to being used to calculate or comparing data is come deal with data with the result's that obtains needs internal procedure and method.The embodiment of circuit card 1 of the present invention can need not send stand-by period prolongation request WTX under the situation of CPU (central processing unit) (CPU) intervention automatically.It is S (WTX) piece that for example defines in the T=1 agreement that such stand-by period prolongs request.
According to an aspect of the present invention, integrated circuit card 1 comprises the I/O piece 4 that receives the external command data, the CPU (central processing unit) 3 of the order data that processing receives, judge whether the processing time of central processing unit 3 reaches the decision block 5 of reference time after externally the order data input is finished, with the controll block 6 of operating in response to the output of decision block 5, wherein no matter when the processing time of CPU (central processing unit) 3 reaches the reference time, thereby controll block 6 is controlled process data (for example S (WTX) piece) and exported by the I/O piece under the situation of need not CPU (central processing unit) 3 intervening.
In useful embodiment of the present invention, when the end of transmission (EOT) of process data, decision block 5 is provided with I/O piece 4 and is receiving mode.
In another useful embodiment of the present invention, when the end of transmission (EOT) of process data, decision block 5 is provided with controll block 6 for confirming receiving mode.This allows to check by interfacing equipment 2 for responding S (WTX response) piece that previous S (WTX request) piece that is sent by integrated circuit card 1 sends.If the stand-by period request is not confirmed by interfacing equipment 2 that then controll block 6 sends S (WTX response) piece result of calculation signal to CPU (central processing unit) 1.
According to another useful embodiment, decision block 5 comprises: be configured to clocking oscillator 7 circuit, be configured to the stored reference time register 8, be configured at the counter of when order data input is finished, counting synchronously 9 and be used to judge whether the gate time of counter reaches the comparer 10 of reference time with clock signal.Finish or the gate time of counter when reaching the reference time when order data input, counter 9 is reset by the output of comparer 10.Decision block further comprises on-off circuit 11, and transmit clock signal was to counter 9 when described on-off circuit 11 was finished in the order data input.
Reference numeral
1, integrated circuit card
2, interfacing equipment
3, CPU (central processing unit)
4, I/O piece
5, decision block
6, controll block
7, oscillator
8, register
9, counter
10, comparer
11, on-off circuit
Claims (7)
1. integrated circuit card, described integrated circuit card comprises: the I/O piece receives the external command data from interfacing equipment; Central processing unit CPU carries out signal communication with the I/O piece, to carry out and the corresponding task of order data that receives; Decision block carries out signal communication with CPU (central processing unit), and after judging that externally the input of order data is finished, whether the working time of CPU (central processing unit) reaches the reference time; And controll block, carry out signal communication with decision block, operate with output in response to decision block, the interfacing equipment that wherein no matter when is connected to integrated circuit card sends a command to integrated circuit card, and integrated circuit card can not respond this order in the maximum latency of definition, controll block is controlled, thereby need not export S (WTX request) by the I/O piece under the situation of CPU (central processing unit) intervention.
2. integrated circuit card according to claim 1, wherein integrated circuit is stuck in work under the T=1 host-host protocol.
3. integrated circuit card according to claim 1 and 2, wherein S (WTX request) is the request of management piece stand-by period.
4. according to claim 1,2 or 3 described integrated circuit cards, wherein the coding of the S of 6 bit modes (WTX request) is " 000011 ".
5. according to the described integrated circuit card of one of aforementioned claim, wherein when the end of transmission (EOT) of process data, it is receiving mode that decision block is provided with the I/O piece.
6. according to the described integrated circuit card of one of aforementioned claim, wherein when the end of transmission (EOT) of process data, decision block is provided with controll block for confirming receiving mode.
7. according to the described integrated circuit card of one of aforementioned claim, wherein the integrated circuit card inspection is to respond S (WTX response) piece that previous S (WTX request) piece that is sent by integrated circuit card sends by interfacing equipment.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08102496 | 2008-03-11 | ||
| EP08102496.0 | 2008-03-11 | ||
| PCT/IB2009/050774 WO2009112963A2 (en) | 2008-03-11 | 2009-02-26 | Integrated circuit card |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101965582A CN101965582A (en) | 2011-02-02 |
| CN101965582B true CN101965582B (en) | 2013-07-24 |
Family
ID=40999954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801082947A Active CN101965582B (en) | 2008-03-11 | 2009-02-26 | Integrated circuit card |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8172150B2 (en) |
| EP (1) | EP2255323B1 (en) |
| CN (1) | CN101965582B (en) |
| WO (1) | WO2009112963A2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201508288D0 (en) * | 2015-05-14 | 2015-06-24 | Zwipe As | Self-contained fingerprint identification device |
| GB2531378B (en) * | 2014-10-10 | 2019-05-08 | Zwipe As | Power harvesting |
| US10664669B2 (en) | 2018-01-30 | 2020-05-26 | Idex Biometrics Asa | Device architecture |
| US10679020B2 (en) | 2018-01-30 | 2020-06-09 | Idex Biometrics Asa | Voltage regulation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1397055A (en) * | 2000-02-03 | 2003-02-12 | 格姆普拉斯公司 | Time management at communication level for smart card-type entity |
| CN1652152A (en) * | 2004-02-04 | 2005-08-10 | 夏普株式会社 | IC card with built-in coprocessor for auxiliary arithmetic, and control method thereof |
| EP1798642A2 (en) * | 2005-12-19 | 2007-06-20 | Seiko Epson Corporation | Information processing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100562505B1 (en) | 2003-10-09 | 2006-03-21 | 삼성전자주식회사 | Integrated circuit card capable of automatically transmitting null byte information without intervention by cpu |
-
2009
- 2009-02-26 CN CN2009801082947A patent/CN101965582B/en active Active
- 2009-02-26 EP EP09719950.9A patent/EP2255323B1/en active Active
- 2009-02-26 US US12/921,600 patent/US8172150B2/en active Active
- 2009-02-26 WO PCT/IB2009/050774 patent/WO2009112963A2/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1397055A (en) * | 2000-02-03 | 2003-02-12 | 格姆普拉斯公司 | Time management at communication level for smart card-type entity |
| CN1652152A (en) * | 2004-02-04 | 2005-08-10 | 夏普株式会社 | IC card with built-in coprocessor for auxiliary arithmetic, and control method thereof |
| EP1798642A2 (en) * | 2005-12-19 | 2007-06-20 | Seiko Epson Corporation | Information processing device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2255323A2 (en) | 2010-12-01 |
| US8172150B2 (en) | 2012-05-08 |
| WO2009112963A2 (en) | 2009-09-17 |
| US20110006121A1 (en) | 2011-01-13 |
| WO2009112963A3 (en) | 2009-11-19 |
| CN101965582A (en) | 2011-02-02 |
| EP2255323B1 (en) | 2015-04-08 |
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